Active Autowerke G80/G82 M3/M4 Signature Equal Length mid - pipe with G - brace (11-114) 1571 SB5-HDG6 kit features ACT's most

SB5-HDG6 kit features ACT's most popular Heavy Duty pressure plate

D2 PRO Series lowering springs optimize and improve handling characteristics by offering a reduction in ride height while maintaining exceptional ride quality through the use of a progressive rate spring

The last exhaust you'll ever need for your Silverado

Aerodynamic design optimized for vehicle fitment

meticulously handcrafted right here in Costa Mesa

Active Autowerke G80/G82 M3/M4 Signature Equal Length mid - pipe with G - brace (11-114) 1571 SB5-HDG6 kit features ACT's mostActive Autowerke introduces the patented Signature Equal Length Mid Pipe for the BMW G80 M3 and G82 M4. Building on expertise from the F8X M cars, this mid pipe offers a true equal length exhaust system with a smoother high rev sound, correcting BMW's stock mid pipe imbalance where the drivers side was longer than the passenger side. The sound character of the stock G8X exhaust is often described as muffled. Active Autowerke addresses this by offering